Surveys

Scientific mooring, top float 60 meters, established in 73-54.07N 129-21.23W

Beaufort Sea · HYDROARC 306/17

What this record establishes

Archived notice · 2019-04-05 11:14Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XVII 94/17 282236Z SEP 17.. Issued 2017-09-28 22:36Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Beaufort Sea. The parsed report position is 73.901, -129.354. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Beaufort Sea →

issued: 2017-09-28 22:36Z
status: Archived notice
authority: NAVAREA XVII 94/17 282236Z SEP 17.
NAVAREA: NAVAREA XVII · named as the source of this relay
sea: Beaufort Sea
position: 73.901, -129.354
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BEAUFORT SEA.
CANADA.
DNC 27.
SCIENTIFIC MOORING, TOP FLOAT 60 METERS,
ESTABLISHED IN 73-54.07N 129-21.23W.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Scientific mooring: Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.

All warning terms →

Collected reports in this area · survey operations

19 within 180 nm since 2006 · 0 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Scientific mooring, top float 75 meters below surface, established in 71-18.66N 127-35.62W2018-10-03
Scientific moorings established in: a. 71-18.66N 127-35.62W, top float 75 meters2017-09-28
Cancel this msg 01 nov 132012-10-18
Beaufort Sea2010-08-11
Nga chart 16003 (17TH ed)2010-07-08
Nga chart 15927 (0 ed)2010-07-08

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-02 19:45Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.